Royal Caribbean's newest ship brings high tech to the high seas with robot bartenders, smart bracelets, virtual balconies and affordable broadband. Bridget Carey boards Quantum of the Seas to check out the tech.

Royal Caribbean's newest ship brings high tech to the high seas with robot bartenders, smart bracelets, virtual balconies and affordable broadband. Bridget Carey boards Quantum of the Seas to check out the tech.

Smoke alarms warn us about fires, but what if we had devices in our homes to warn us about earthquakes seconds before they strike? For less than $100, a UC Berkeley professor has figured out how to make an in-home early warning quake system. CNET's Sumi Das looks at what it takes to make it work.